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Phytofiltration of arsenic and cadmium from the water environment using Micranthemum umbrosum(J.F. Gmel) S.F. Blake as a hyperaccumulator

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Title: Phytofiltration of arsenic and cadmium from the water environment using Micranthemum umbrosum(J.F. Gmel) S.F. Blake as a hyperaccumulator
Authors: Islam, Md. Shariful Browse this author
Ueno, Yasuyuki Browse this author
Sikder, Md. Tajuddin Browse this author
Kurasaki, Masaaki Browse this author →KAKEN DB
Keywords: heavy metals
bio-concentration factor
water environments
Issue Date: 6-Mar-2013
Publisher: Taylor & Francis
Journal Title: International Journal of Phytoremediation
Volume: 15
Issue: 10
Start Page: 1010
End Page: 1021
Publisher DOI: 10.1080/15226514.2012.751356
PMID: 23819292
Abstract: Arsenic (As) and cadmium (Cd) pollution in water is an important global issue. Phytofiltration is an eco-friendly technology that helps clean up pollutants using ornamental plants, such as Micranthemum umbrosum (J.F. Gmel) S.F. Blake. After a seven-day hydroponic experiment, M. umbrosum removed 79.3–89.5% As and 60–73.1% Cd from 0 to 1.0 μg As mL–1 and 0.3 to 30.0 μg Cd mL–1 solutions, respectively. For As treatment, root to stem and stem to leaf translocation factors greater than 1.0 indicated that accumulation of As in leaves was large compared to that in stem and roots. However, the accumulation of Cd in roots was higher than that in the leaves and stem. In addition, M. umbrosum completely removed Cd within three days from 0.38 to around 0 μg mL–1Cd in the solution when the plant was exchanged daily. Bio-concentration factors (2350 for As and 3027 for Cd) for M. umbrosum were higher than for other As and Cd phytoremediators. The results show that M. umbrosum can be an effective accumulator of Cd and a hyper-accumulator of As, as it can lower As toxicity to a level close to the limit recommended by the World Health Organization (0.01 μg As mL–1)
Type: article (author version)
URI: http://hdl.handle.net/2115/54748
Appears in Collections:環境科学院・地球環境科学研究院 (Graduate School of Environmental Science / Faculty of Environmental Earth Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 藏崎 正明

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